This video appears on the page: Graphing Parabolas (a.k.a. Quadratics)

Parabolas -- Vertex Form Graphing & Vocab

In this video we get at the basics of graphing quadratic functions (parabolas) that are already in vertex form: axis of symmetry, domain, range, orientation, maximum/minimum, and intervals of increasing/decreasing. (For more on finding x-intercepts/zeros of quadratics, check out my solving quadratics chapter.)